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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - use BTN_TOOL_TRIPLETAP for three-finger touch detection on 2-slot touchpads"
href="https://bugs.freedesktop.org/show_bug.cgi?id=101435">101435</a>
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<th>Summary</th>
<td>use BTN_TOOL_TRIPLETAP for three-finger touch detection on 2-slot touchpads
</td>
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<th>Product</th>
<td>Wayland
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<th>Version</th>
<td>unspecified
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<th>Hardware</th>
<td>Other
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
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<th>Component</th>
<td>libinput
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<th>Assignee</th>
<td>wayland-bugs@lists.freedesktop.org
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<th>Reporter</th>
<td>peter.hutterer@who-t.net
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<pre>From: <a href="https://bugzilla.redhat.com/show_bug.cgi?id=1455443">https://bugzilla.redhat.com/show_bug.cgi?id=1455443</a>
Summary: synaptics 2-slot touchpads give us pointer jumps when the third finger
is down. The data we get is garbage, sometimes the two touches swap slots,
sometimes we get two x/y positions within the same frame for the same slot,
etc.
As a result, three-finger taps are unreliable.
This wasn't the case with synaptics because it merely relied on
BTN_TOOL_TRIPLETAP and didn't use the same motion detection we have in
libinput.</pre>
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